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armv8: Use neg instead of sub #0, neg as replacement for rsb

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am: e5b0a782fa

Change-Id: I7a3c9ffe86661c89535911b49d934fd143bdedd6
This commit is contained in:
Martin Storsjo 2016-10-14 23:53:02 +00:00 • committed by android-build-merger
commit 0ec1c11c50
4 changed files with 6 additions and 12 deletions
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3
common/armv8/ih264_intra_pred_luma_16x16_av8.s
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@ -444,8 +444,7 @@ ih264_intra_pred_luma_16x16_mode_plane_av8:
uxtl v18.8h, v7.8b
add x7, x0, x4, lsl #3
sub x0, x7, x4, lsl #1
sub x20, x4, #0x0
neg x14, x20
neg x14, x4
addp v0.8h, v0.8h, v1.8h
ldrb w8, [x7], #-1
ldrb w9, [x0], #1

3
common/armv8/ih264_padding_neon_av8.s
View file

@ -90,8 +90,7 @@ ih264_pad_top_av8:
stp x19, x20, [sp, #-16]!
sub x5, x0, x1
sub x20, x1, #0
neg x6, x20
neg x6, x1
loop_neon_memcpy_mul_16:
// Load 16 bytes

6
common/armv8/ih264_weighted_bi_pred_av8.s
View file

@ -145,8 +145,7 @@ ih264_weighted_bi_pred_luma_av8:
ldr w8, [sp, #80] //Load wt2 in w8
ldr w9, [sp, #88] //Load ofst1 in w9
add w6, w6, #1 //w6 = log_WD + 1
sub w20, w6, #0 //w10 = -(log_WD + 1)
neg w10, w20
neg w10, w6 //w10 = -(log_WD + 1)
dup v0.8h, w10 //Q0 = -(log_WD + 1) (32-bit)
ldr w10, [sp, #96] //Load ofst2 in w10
ldr w11, [sp, #104] //Load ht in w11
@ -432,8 +431,7 @@ ih264_weighted_bi_pred_chroma_av8:
add w6, w6, #1 //w6 = log_WD + 1
ldr w9, [sp, #88] //Load ofst1 in w9
ldr w10, [sp, #96] //Load ofst2 in w10
sub w20, w6, #0 //w20 = -(log_WD + 1)
neg w20, w20
neg w20, w6 //w20 = -(log_WD + 1)
dup v0.8h, w20 //Q0 = -(log_WD + 1) (16-bit)
ldr w11, [sp, #104] //Load ht in x11
ldr w12, [sp, #112] //Load wd in x12

6
common/armv8/ih264_weighted_pred_av8.s
View file

@ -125,8 +125,7 @@ ih264_weighted_pred_luma_av8:
sxtw x8, w8
dup v2.4h, w5 //D2 = wt (16-bit)
sub w20, w4, #0 //w9 = -log_WD
neg w9, w20
neg w9, w4 //w9 = -log_WD
dup v3.8b, w6 //D3 = ofst (8-bit)
cmp w8, #16 //check if wd is 16
dup v0.8h, w9 //Q0 = -log_WD (16-bit)
@ -354,8 +353,7 @@ ih264_weighted_pred_chroma_av8:
ldr w8, [sp, #80] //Load wd
sxtw x8, w8
sub w20, w4, #0 //w9 = -log_WD
neg w9, w20
neg w9, w4 //w9 = -log_WD
dup v2.4s, w5 //Q1 = {wt_u (16-bit), wt_v (16-bit)}